getExtensions

import { getExtensions } from 'ranuts';

const exts = getExtensions('image/jpeg');
console.log(exts); // ['jpeg', 'jpg', 'jpe']

import { getExtensions } from 'ranuts';

const jsExts = getExtensions('application/javascript');
console.log(jsExts); // ['js', 'jsx', 'ts', 'tsx']

import { getExtensions } from 'ranuts';

function isValidImageFile(filename, mimeType) {
  const exts = getExtensions(mimeType);
  const fileExt = filename.split('.').pop();
  return exts.includes(fileExt);
}

console.log(isValidImageFile('photo.jpg', 'image/jpeg')); // true